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Seed Tool


This tool is a simplified version of the Ian Coleman BIP39 tool combined with the Samourai Wallet BIP47 tool. Its aim is to help Bitcoiners gain an understanding of how entropy, seed generation, passphrases, xpubs and payment codes are all interlinked. Just like the tools and libraries used in its creation, this tool is completely free and open source.

Warning

NEVER use the online version of this tool to create or interact with seeds used to manage real bitcoin. If the tool detects a network connection, you will see a network symbol in the top corner of the screen. To use this tool offline, right click and 'Save Page As' to save a HTML file that can be opened in any web browser on an offline device or an amnesic operating system like Tails.

Usage

The most comomon use cases for this tool are:-

  • Learning how entropy is used to derive wallet components
  • Generating seeds via dice rolls, coin flips or playing cards
  • Verifying entropy inputs (dice rolls etc) applied to external wallets or signers
  • Generating BIP85 child seeds (or check those generated by a signing device)
  • Generating BIP47 payment codes and their corresponding PayNym avatars
  • Generating BIP47 addresses between any two payment codes
  • Verifying wallet address generation from a given seed/passphrase combination
  • Testing for a forgotten/incorrect passphrase (if you know a receive address)


  • 🤖 Generate a cryptographically strong random mnemonic
  • 🎲 Enter in your own entropy

Generate a Cryptographically Random Mnemonic of words.

Warning! Entropy is an advanced feature. Your mnemonic may be insecure if this feature is used incorrectly.
Click on the orange button above to learn more.

BIP39: Mnemonic code for generating deterministic keys


No passphrase entered!


BIP32: Hierarchical Deterministic Wallets



Note these addresses are derived from the BIP32 Extended Key

Display addresses from index to index

My Details

Counterparty Details


Warning! This is an advanced feature and should only be used if you understand what it does. Click on the button above to learn more.